Scanning tunneling microscope light emis
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Y. Uehara; M. Kuwahara; S. Katano; S. Ushioda
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Article
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2009
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Elsevier Science
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English
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We have observed scanning tunneling microscope light emission (STM-LE) spectra of Ge 2 Sb 2 Te 5 and Sb 2 Te 3 . Although these chalcogenide alloys exhibit band gaps less than 0.5 eV, the STM-LE was observed with a narrow spectral width at a photon energy of 1.5 eV for both materials. By analyzing i